Cream together butter, peanut butter and sugars. Beat in eggs.
In a separate bowl, sift together flour, baking powder, baking soda, and salt. Stir into batter. Put batter in refrigerator for 1 hour.
Roll into 1 inch balls and put on baking sheets. Flatten each ball with a fork, making a criss-cross pattern. Bake in a preheated 375 degrees F oven for about 10 minutes or until cookies begin to brown. Do not over-bake.
Using your balanced equation solve the following problem:
You find yourself hungry for peanut butter cookies and search for ingredients. You search and find you have enough of most ingredients, however, you only have 3/4 cup of white sugar and 7/8 tsp of baking soda. Which item is the limiting ingredient and which is the excess? How many cookies can you bake?
Limiting: Baking Soda
Excess: White Sugar
of cookies: 28
We have the work written out on a piece of notebook paper that I can hand in Monday>
Summary of Relation to Chemistry
The recipe for the peanut butter cookies was converted into a chemistry problem because with each of the ingredients, a mole value was given. This relationship worked because the equation that was made was able to balance in such a way that you could find the amount of cookies that will be made with the amount of ingredients that are used. This relationship that was made from the cookies to the actual lab equations that we will be doing the rest of the year will help out because when a certain amount of moles are used of each ingredient, which would be an element or compound in a lab equation, could be varied to get a certain amount of the product, as long as the equation is equally balanced to the original equation.
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Peanut Butter Cookies
Ingredients
Directions
Balanced Equation
4Bu + 2Pb + 2Ws + 2Bs + 4Eg + 5F + 2Bp+ 1S + 3Bk --> 96 CookiesUsing your balanced equation solve the following problem:
You find yourself hungry for peanut butter cookies and search for ingredients. You search and find you have enough of most ingredients, however, you only have 3/4 cup of white sugar and 7/8 tsp of baking soda. Which item is the limiting ingredient and which is the excess? How many cookies can you bake?
Limiting: Baking Soda
Excess: White Sugar
- of cookies: 28
We have the work written out on a piece of notebook paper that I can hand in Monday>Summary of Relation to Chemistry
The recipe for the peanut butter cookies was converted into a chemistry problem because with each of the ingredients, a mole value was given. This relationship worked because the equation that was made was able to balance in such a way that you could find the amount of cookies that will be made with the amount of ingredients that are used. This relationship that was made from the cookies to the actual lab equations that we will be doing the rest of the year will help out because when a certain amount of moles are used of each ingredient, which would be an element or compound in a lab equation, could be varied to get a certain amount of the product, as long as the equation is equally balanced to the original equation.